1. Abernathy, Penelope Muse (2018). The Expanding News Desert, University of North Carolina, Center for Innovation and Sustainability in Local Media.
2. Abernathy, Penelope Muse (2020). News Deserts and Ghost Newspapers: Will Local News Survive?, University of North Carolina Press.
3. Abernathy, Penelope Muse (2022). The State of Local News: The 2022 Report, Northwestern Medill School Local News Initiative.
4. Accenture (2021). Notícias, Tendências e Panoramas da Mídia no Brasil [News, Tendencies and Media Overview in Brazil], Accenture.
5. Almeida, Joana (Jornal de Negócios, 2022). Abstenção terá caído pela primeira vez desde 2005 [Abstention would have fallen for the first time since 2005], Jornal de Negócios.